Origin
Afghanistan, Southern and central Africa
-
Color
Grey, White, Colorless, gray, Pale pink, Blue
Blue, White, Grey, Yellow, Green, Colorless, Red, gray
Streak
White
Blue, White
For which Rashi?
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-
Planet
-
-
Element of Planets
-
-
Energy
-
-
How to Wear?
Finger
-
-
Ring Metal
-
-
Deities
-
-
Not to wear with
-
-
Powers
-
-
Birthstone
Planetary
-
-
Talisman
-
-
Tenacity
Brittle
Brittle
Solubility
Readily soluble in HF
Gelatinises in acids
Durability
-
-
Specific Gravity
2.86-2.942.4-2.5
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Uneven, Conchoidal
Cleavage
None observed
Distinct on {110}
Mohs Hardness
6.5-75-6
2
10
👆🏻
Chemical Composition
(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references
(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2
Luster
Vitreous, Greasy
Vitreous, Greasy
Pleochroism
-
None
Dispersion
0.010.01
0.005
1
👆🏻
Transparency
Transparent, Translucent
-
Refractive Index
1.517-1.5251.50
1
3.25
👆🏻
Optic Character
-
-
Crystal System
Isometric
Isometric
Birefringence
-9999-9999
0
0.296
👆🏻
Clarity
Transparent
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Physical
Neurological
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Enhances mental clarity and focus
Cardiovascular
-
-
Respiratory
Good
Good
Reproductive
-
-
Digestive
-
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Psychology
-
Communication
Healing
-
Emotional healing
Qualities Associated
Harmony
Communication